feat: add example usage of comparator

Signed-off-by: Matej Focko <mfocko@redhat.com>

comparator_usage.py

@@ -0,0 +1,47 @@
+from comparator import Comparator
+from avl import AVLTree
+from wavl import WAVLTree
+
+import logging
+import random
+
+
+def main():
+    logging.basicConfig(level=logging.DEBUG)
+
+    t = Comparator(AVLTree(), WAVLTree())
+    # t = WAVLTree()
+
+    values = []
+    for _ in range(42):
+        x = random.randint(1, 100)
+        while x in values:
+            x = random.randint(1, 100)
+
+        values.append(x)
+        t.insert(x)
+
+    for _ in range(5):
+        x = random.choice(values)
+        values.remove(x)
+        t.delete(x)
+
+    for _ in range(42):
+        x = random.randint(1, 100)
+        while x in values:
+            x = random.randint(1, 100)
+
+        values.append(x)
+        t.insert(x)
+
+    for _ in range(5):
+        x = random.choice(values)
+        values.remove(x)
+        t.delete(x)
+
+    print(t)
+    # print(t.are_equal)
+
+
+if __name__ == "__main__":
+    main()